Tire Geometry Inspection

Cost reduction of inferior quality tires distribution, cost reduction of the reclamation process, feedback process for defect elimination in previous production processes, one of tests minimizing the danger caused at usage of inferior quality tires (tire destruction). This is a brief outline of utilization arguments of the TireGeometryInspection system, which monitors the tire quality regarding tire surface – bulges, depressions and tire run-out.

From the historical view it can be stated, that on the market occur 3rd generation systems based on the Sheet-of-Light sensors.

Final tire testing was realized (and is on some lines still realized) by the capacity measurement principle. Capacitive measurement principle consists in distance point measurement between the tire and the sensor. During one tire turn is the system capable to scan the tire profile around the rotation axis. The second generation replaces the capacitive measurement by the optical point measurement, so called point triangulation sensor.

From the measurement principle of view, the third generation of TGI system , which consists of three sheet-of-light sensors, is capable to evaluate the measurement area defined by the user in a defined tire angle (in case of the first and second generation it was one point, resp. one distance) occurs on the market.

Three sheet-of-light sensors scan the external tire surface. The sensors provide information (scanned data of the profile) to the system regarding the tire surface, lettering and printing included. The system eliminates lettering and printing from the gathered profiles. Acquired data are then evaluated – bulges, depression, radial and lateral runout, harmonic analysis are classified.